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发明名称
Anti-blast and anti-suction air valve for atomic bomb shelter
摘要
申请公布号
US3132666(A)
申请公布日期
1964.05.12
申请号
US19610159557
申请日期
1961.12.15
申请人
NELSON ELNATHAN K
发明人
NELSON ELNATHAN K.
分类号
A62B13/00
主分类号
A62B13/00
代理机构
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